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971.
Consumers worldwide are increasingly concerned with sustainable production and consumption. Recently, a comprehensive study ranked 17 countries in regard to their environmentally friendly behaviour among consumers. Brazil was one of the top countries in the list. Yet, several studies highlight significant differences between consumers' intentions to consume ethically, and their actual purchase behaviour: the so‐called ‘Attitude‐Behaviour Gap’. In developing countries, few studies have been conducted on this issue. The objective of this study is therefore to investigate the gap between citizens' sustainability‐related attitudes and food purchasing behaviour using empirical data from Brazil. To this end, Brazilian citizens' attitudes towards pig production systems were mapped through conjoint analysis and their coexistence with relevant pork product‐related purchasing behaviour of consumers was investigated through cluster analysis. The conjoint experiment was carried out with empirical data collected from 475 respondents surveyed in the South and Center‐West regions of Brazil. The results of the conjoint analysis were used for a subsequent cluster analysis in order to identify clusters of Brazilian citizens with diversified attitudes towards pig production systems, using socio‐demographics, attitudes towards sustainability‐related themes that are expected to influence the way they evaluate pig production systems, and consumption frequency of various pork products as clusters' background information. Three clusters were identified as ‘indifferent’, ‘environmental conscious’ and ‘sustainability‐oriented’ citizens. Although attitudes towards environment and nature had indeed an influence on citizens' specific attitudes towards pig farming at the cluster level, the relationship between ‘citizenship’ and consumption behaviour was found to be weak. This finding is similar to previous research conducted with European consumers: what people (in their role of citizens) think about pig production systems does not appear to significantly influence their pork consumption choices. Improvements in the integrated management of this chain would better meet consumers' sustainability‐related expectations towards pig production systems.  相似文献   
972.
The popularity of online rate-and-review websites has increased the importance of word-of-mouth (WOM) volume (number of ratings) yet the retail literature has not paid adequate attention to understanding its impact. This paper highlights WOM volume as a high-scope, decision-making cue upon which the influence of other WOM-relevant characteristics on a WOM message's persuability depends. We begin, via a pretest, by demonstrating the intuitive expectation that high volume, relative to low volume, accentuates or assimilates perceptions of positivity or negativity of WOM targets. Then, through two experimental studies, we show that depending upon how high volume interacts with WOM consensus and consumer decision precommitment, it can contrast preference away from the valence of a target also. In our third and final experimental study, we demonstrate that consumers differ in their susceptibility to the influence of high volume. Those with a higher desire to be different from others, compared to those with a higher desire to be similar, are resistant to high volume's assimilative sway and do not show the valence-accentuating effects demonstrated in the pretest. Retail managers and researchers should find these insights about the different roles of WOM volume beneficial.  相似文献   
973.
PARTIAL HEDGING IN A STOCHASTIC VOLATILITY ENVIRONMENT   总被引:1,自引:0,他引:1  
We consider the problem of partial hedging of derivative risk in a stochastic volatility environment. It is related to state-dependent utility maximization problems in classical economics. We derive the dual problem from the Legendre transform of the associated Bellman equation and interpret the optimal strategy as the perfect hedging strategy for a modified claim. Under the assumption that volatility is fast mean-reverting and using a singular perturbation analysis, we derive approximate value functions and strategies that are easy to implement and study. The analysis identifies the usual mean historical volatility and the harmonically averaged long-run volatility as important statistics for such optimization problems without further specification of a stochastic volatility model. The approximation can be improved by specifying a model and can be calibrated for the leverage effect from the implied volatility skew. We study the effectiveness of these strategies using simulated stock paths.  相似文献   
974.
This paper is an attempt to derive priorities for the reform of European merger policy from observed problems with decision making in merger cases. We identify problems in the application of theory and empirical method as well as the impact of resource constraints and the potential for systematic decision bias. In contrast to the intense debate about the merits of a switch from a dominance criterion to a significant lessening of competition test, we find that such a switch would not effectively address any of the problems in Commision decision making on mergers. Similarly, the lack of an efficiency defense does not seem to explain any of the weaknesses of European merger policy. In contrast, we find that most of the problem areas identified in current merger control practice can be effectively addressed by reforming the merger procedure, the internal organization of merger control in the Commission, as well as addressing resource issues. Together with carefully crafted merger guidelines these should have strong priority for the reform of merger policy in Europe.  相似文献   
975.
The authors introduce cognitive continuum theory (CCT) as a theoretical framework to examine the effect of consumer shopping tasks and retail information display properties on consumer perceptions of experiential value. In this empirical investigation, the nature of a consumer’s shopping task is found to exert a direct influence on consumer perceptions of efficiency, economic value, and shopping enjoyment, all active dimensions of value. In addition, congruent interactions between shopping task and retail information display properties exert an enhancing effect on the reactive dimensions of value, as evidenced by perceptions of visual appeal, entertainment value, and service excellence. Future application of CCT is outlined and managerial implications are discussed.  相似文献   
976.
Individual performance is a building block of organizational success. Not surprisingly, virtually all organizations have in place some type of performance management system. Yet, managers and employees are equally skeptical that performance management adds value; usually, it is seen as a waste of time and resources. We argue that the potential benefits of performance management are not realized because most systems focus exclusively on narrow and evaluative aspects such as performance appraisal. Herein, we offer a broader view of performance management, including discussion of how it differs from performance appraisal. We highlight specific and important benefits of performance management for employees, managers, and organizations. We also describe research-based conclusions regarding how performance management systems should be designed and implemented to realize these benefits. We hope our article will demonstrate that well-constructed performance management systems should not be hated, but rather embraced.  相似文献   
977.
978.
The Unfair Commercial Practices Directive 2005 (UCPD) attempts to achieve a full harmonization of the rules against unfair business-to-consumer (B2C) practices. However, this paper argues that the UCPD cannot resolve disparities in national laws because of a lack of clarity of concepts and the existence of uncertain substantive and enforcement provisions. This is demonstrated by the Ferguson v British Gas case which extended the loosely formulated UK Protection from Harassment Act 1997 (PHA) to B2C harassment cases covered by the UCPD. Ferguson highlights contradictions in the approaches of the two systems which suggest loopholes in the UCPD’s full harmonization goal. As well as proposing the amendment of the PHA, the paper suggests that complete harmonization requires that issues of clarity of concepts, definitions, liability, ancillary tort claims, and enforcement rights which create room for creative interpretations and lack of uniformity should be addressed. A one-stop legislation approach to transposition can also improve harmonization.  相似文献   
979.
This paper investigates pricing issues in class-based networks. Classes of packets having lower impatience and longer average delay receive monetary compensations. The inter-class price differential is determined by the inter-class compensations. The paper also presents rules for allocating network resource to each class. The corresponding payoff (disutility share) for each class is driven by the Shapley Value of the associated cooperative game.  相似文献   
980.
Owing to the growing academic and practitioner’s interest in the field of Corporate Social Responsibility, there is a need to do a comprehensive assessment and synthesis of research activities. This article addresses this need and examines the academic literature on Corporate Social Responsibility and Performance using a paradigmatic and methodological lens. The objective of this article is fourfold. First, it examines the status of CSR research from its beginning especially after 1970 to year 2008 in leading academic journals and reports to assess the focus areas of research on CSR so far. Second, it analyzes the research paradigms adopted in these research articles using the Operations Research Paradigm framework. Third, it compares and contrasts various kinds of research articles, methodologies, and research designs used in various researches in literature. Finally, it uncovers the implications of this study and directions for future research.  相似文献   
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